Cut down on carbohydrates as they break down to sugars.
Eat less starch - rice, noodles, potato, bread. If can, go for whole grain options, eg. Wholemeal bread instead of white bread.
Drinks - cut down on juices, milo, coffee, tea etc. Only milk or water.
Fruits - no avocado, grapes, mango, melon. Stick to apples and oranges.
I gained 2 kg in the last month, bb was 700+g which doc says is a bit fat, so he ask me to control my diet and to put me down for glucose test next month.... The above things are what he tell me cannot take.... Although I will still take some sweet stuff in moderation. Cannot resist!